How does your body burn calories?

Journal-Advocate staff

Posted:
01/03/2013 10:44:25 AM MST

Metabolism describes the burning of calories which the body converts to the energy it needs to function. The three main ways the body burns calories are: resting metabolic rate (RMR), thermic effect of food and physical activity. RMR is the number of calories we burn to maintain our bodily functions. This is measured by measuring your oxygen consumption while you are quietly sitting in a fasting state.